Round-1 review follow-ups (PR #857): - scanner.py: skip the rename-reconcile when the existing metadata point is a placeholder. reconcile_document_path only touches real chunks, so a not-yet- indexed file would just incur a 0-point set_payload; the real index writes the current path anyway. - test_sharing_state.py: add a dedup-hit case where the file was renamed AND the user is new to the ACL, asserting both set_payload writes fire (file_path/title and acl_principals). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>